<?xml version="1.0" encoding="UTF-8"?>
<oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:title>Sample Size for Validation of Risk Models with Binary Outcomes</dc:title>
  <dc:title>R package sampsizeval version 1.0.0.0</dc:title>
  <dc:description>Estimation of the required sample size to validate a risk model for binary outcomes, based on the sample size equations proposed by Pavlou et al. (2021) &lt;doi:10.1177/09622802211007522&gt;. For precision-based sample size calculations, the user is required to enter the anticipated values of the C-statistic and outcome prevalence, which can be obtained from a previous study. The user also needs to specify the required precision (standard error) for the C-statistic, the calibration slope and the calibration in the large. The calculations are valid under the assumption of marginal normality for the distribution of the linear predictor. </dc:description>
  <dc:type>Software</dc:type>
  <dc:relation>Imports: stats, sn, pracma, dplyr, plyr</dc:relation>
  <dc:relation>Suggests: testthat (&gt;= 3.0.0)</dc:relation>
  <dc:creator>Menelaos Pavlou &lt;m.pavlou@ucl.ac.uk&gt;</dc:creator>
  <dc:publisher>Comprehensive R Archive Network (CRAN)</dc:publisher>
  <dc:contributor>Menelaos Pavlou [aut, cre] (ORCID:
    &lt;https://orcid.org/0000-0003-1161-1440&gt;)</dc:contributor>
  <dc:rights>MIT + file LICENSE (https://CRAN.R-project.org/package=sampsizeval/LICENSE)</dc:rights>
  <dc:date>2021-05-28</dc:date>
  <dc:format>application/tgz</dc:format>
  <dc:identifier>https://CRAN.R-project.org/package=sampsizeval</dc:identifier>
  <dc:identifier>doi:10.32614/CRAN.package.sampsizeval</dc:identifier>
</oai_dc:dc>